/Engine/Source/Runtime/Online/Experimental/EventLoop/Public/EventLoop/EventLoopTimer.h
struct FTimerData
uint8:  1
bRepeat
If true, this timer will repeat indefinitely. Otherwise, it will be destroyed when it expires.
FTimerCallback
Callback
Holds the callback to call.
FTimespan
Expiration
When the timer is active, the expiration is the absolute time relative to the Timer Manager at which the timer should be fired.
TOptional<FTim...
FirstDelay
Time to delay the first execution of the timer. Relevant to looping timers.
FTimespan
Rate
Time between set and fire, or repeat frequency if looping.
ETimerStatus
Status